Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By : Valerio De Sanctis
Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By: Valerio De Sanctis

Overview of this book

Every full-stack ninja needs the tools to operate on front-end and back-end application development. This web app development book takes a hands-on, project-based approach to provide you with all the tools and techniques that web developers need to create, debug, and deploy efficient web applications using ASP.NET Core and Angular. The fifth edition has been updated to cover advanced topics such as Minimal APIs, Web APIs with GraphQL, real-time updates with SignalR, and new features in .NET 6 and Angular 13. You begin by building a data model with Entity Framework Core, alongside utilizing the Entity Core Fluent API and EntityTypeConfiguration class. You'll learn how to fetch and display data and handle user input with Angular reactive forms and front-end and back-end validators for maximum effect. Later, you will perform advanced debugging and explore the unit testing features provided by (.NET 6) and Jasmine, as well as Karma for Angular. After adding authentication and authorization to your apps, you will explore progressive web applications, learning about their technical requirements, testing processes, and how to convert a standard web application to a PWA. By the end of this web development book, you will understand how to tie together the front-end and back-end to build and deploy secure and robust web applications.
Table of Contents (18 chapters)
Other Books You May Enjoy

Forms and Data Validation

In this chapter, we’ll mostly deal with forms, data input, and validation techniques. As we already know, HTML forms are one of the most important and delicate aspects of any business application. Nowadays, forms are used to fulfill almost any task involving user-submitted data, such as registering or logging in to a website, issuing a payment, reserving a hotel room, ordering a product, performing and retrieving search results, and more.

If we were asked to define a form from a developer’s perspective, we would come out with the statement that a form is a UI-based interface that allows authorized users to enter data that will be sent to a server for processing. The moment we accept this definition, two additional considerations should come to mind:

  1. Each form should provide a data entry experience good enough to efficiently guide our users through the expected workflow; otherwise, they won’t be able to use it properly.
  2. ...